halcrontech
Well-Known Member
I have finally received my pistons from wiseco.
http://img.photobucket.com/albums/v51/ISS8634/piston2.jpg
http://img.photobucket.com/albums/v51/ISS8634/paper1.jpg
If you are planning some rebuild project for your M42 engine is looking for piston data, this might be helpful to you.
Btw, the pistons are 86mm bore and compression is 9:1. Its intended for the 88mm M47 crankshaft and 135mm conrods (stock M42 rods are 140mm, M50 rods are 135mm).
The compression height of the pistons are 33.147mm. So if you are using 135mm rods and the M47 crank, you will need 33.147mm to get compression of 10:1 (stock).
http://img.photobucket.com/albums/v51/ISS8634/piston2.jpg
http://img.photobucket.com/albums/v51/ISS8634/paper1.jpg
If you are planning some rebuild project for your M42 engine is looking for piston data, this might be helpful to you.
Btw, the pistons are 86mm bore and compression is 9:1. Its intended for the 88mm M47 crankshaft and 135mm conrods (stock M42 rods are 140mm, M50 rods are 135mm).
The compression height of the pistons are 33.147mm. So if you are using 135mm rods and the M47 crank, you will need 33.147mm to get compression of 10:1 (stock).
